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If the Live region contains different elements, it is output incorrectly (IE 11, Firefox) #295

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JAWS-test opened this issue Sep 8, 2019 · 0 comments
Open

If the Live region contains different elements, it is output incorrectly (IE 11, Firefox) #295

JAWS-test opened this issue Sep 8, 2019 · 0 comments
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aria-live-region

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@JAWS-test
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JAWS-test commented Sep 8, 2019 •
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Summary

If the Live region contains different elements, it is output incorrectly (IE 11, Firefox)

  1. save as HTML file:
<!DOCTYPE html>
<html lang="en">
	<head>
		<meta charset="utf-8">
		<title>live region</title>
	</head>
	<body>
		<div aria-live=polite id=1></div>
		<button onClick="document.getElementById('1').innerHTML='<a href=https://www.w3.org/TR/wai-aria-1.1/#alert>ARIA 1.1</a><h2>role=alert</h2><p>Indicates whether assistive technologies will</p><ul><li>present all,<li>or only parts of,</ul><section>the changed region based on the change notifications defined by the <code>aria-relevant</code> attribute</section>';">Alert</button>	
	</body>	
</html>
  1. Press the button

Expected result

  • Consistent output between browsers
  • The entire content of the live region is output once.

Actual result

  • Different output from browser to browser
  • Firefox: The entire content is output twice. Depending on the order of the elements, sometimes only certain elements are output 2x (e.g. the heading).
  • IE 11: The content is only output up to the first link
  • Chrome: ok
  • The problems also occur when using roles for Live Region (alert, status etc.) instead of aria-live.

see also: w3c/aria-practices#78 and many other problems with live regions: https://github.com/FreedomScientific/VFO-standards-support/issues?q=live+region

Additional Information

JAWS version and build number

JAWS 2019.1907.42

Operating System and version

Windows 8

Browser and version:

Chrome 76.0.3809.100
Firefox 68.0.2
Internet Explorer 11.0.9600.19431
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@stevefaulkner @JAWS-test